CHELSEA WILLIAMS
NPI 1154062255
Peer Specialist in Aberdeen, WA

NPI Status: Active since April 05, 2022

Contact Information

2700 SIMPSON AVE STE 101
ABERDEEN, WA
ZIP 98520
Phone: (360) 612-0012
Fax: (360) 532-0670

NPI Profile Information
Primary Taxonomy
NPI Validation
Other Providers Same Location
Frequently Asked Questions

Individual
Female
Peer Specialist

About CHELSEA WILLIAMS

This page provides the complete NPI Profile along with additional information for Chelsea Williams, a provider established in Aberdeen, Washington with a medical specialization in Peer Specialist. The healthcare provider is registered in the NPI registry with number 1154062255 assigned on April 2022. The practitioner's primary taxonomy code is 175T00000X. The provider is registered as an individual and her NPI record was last updated 4 years ago.

NPI: 1154062255
Provider Name: CHELSEA WILLIAMS
Gender: Female
Entity Type: Individual
Location Address: 2700 SIMPSON AVE STE 101 ABERDEEN, WA 98520
Location Phone: (360) 612-0012
Location Fax: (360) 532-0670
Mailing Address: PO BOX 1847 LONGVIEW, WA 98632
Mailing Phone: (360) 423-0203
Mailing Fax: (360) 532-0670
Is Sole Proprietor?: No
Enumeration Date: 04-05-2022
Last Update Date: 04-05-2022
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Specialty - Primary Taxonomy

The NPI enumerator requires providers to submit at least one taxonomy code. A taxonomy code is a unique 10-character code that describes the healthcare provider type, classification, and the area of specialization. There could be only one primary taxonomy code per NPI record. For individual NPIs the license data is associated to the taxonomy code.

Classification: Peer Specialist
Taxonomy Code: 175T00000X
Type: Other Service Providers
License State: WA
Taxonomy Description: Individuals certified to perform peer support services through a training process defined by a government agency, such as the Department of Veterans Affairs or a state mental health department/certification/licensing authority.

NPI NPI Number Validation

How NPI Validation Works

The NPI validation process uses the ISO-standard Luhn algorithm, a mathematical "handshake", to ensure that a provider's 10-digit ID is authentic and free of common typing errors.

To verify the NPI 1154062255, we treat the final digit (5) as the Check Digit—the target answer we need to reach. The process begins by taking the first nine digits and adding a constant value of 24, which accounts for the "80840" prefix required for all U.S. health identifiers. We then double every other digit starting from the right and sum the individual digits of those results together. For this specific NPI, that total comes to 45. The final step is to find the difference between that total and the next multiple of ten (50 - 45 = 5).

Digit-by-digit view

Use the first nine digits for the calculation. Starting from the right, double every other digit. The last digit is the check digit and is not part of the calculation.

Pos 1

Doubled → 2

Pos 2

Unchanged

Pos 3

Doubled → 10 → 1 + 0

Pos 4

Unchanged

Pos 5

Doubled → 0

Pos 6

Unchanged

Pos 7

Doubled → 4

Pos 8

Unchanged

Pos 9

Doubled → 10 → 1 + 0

Check

Target digit

Regular digit Doubled digit Check digit

Step 1: Double every other digit from the right

Starting with the rightmost digit of the first nine digits, double every other value. If doubling creates a two-digit number, add those digits together.

1 → 2 5 → 10 → 1 0 → 0 2 → 4 5 → 10 → 1

Step 2: Add all digits plus the NPI constant

Add the transformed values, the unchanged digits, and the constant 24.

2 + 1 + 1 + 0 + 4 + 0 + 6 + 4 + 2 + 1 + 0 + 24 = 45

Step 3: Find the amount needed to reach the next multiple of 10

The next multiple of ten after 45 is 50. The difference is the calculated check digit.

50 - 45 = 5

This NPI is valid

The calculated check digit is 5, which matches the last digit of 1154062255.